I suppose the surviving elves are her subjects now. New citizens of Arachnea. Now she has the justification to destroy the western kingdom.
Considering how most of her actions up til now was for the good of the village but using ruthless, amoral methods, I'd consider her an antihero(ine) not a villain(ess). Yet. Maybe she'll take an even darker turn, but for now, she is what she is.